diff options
Diffstat (limited to 'arch/arm64/kvm/vgic/vgic-its.c')
-rw-r--r-- | arch/arm64/kvm/vgic/vgic-its.c | 370 |
1 files changed, 115 insertions, 255 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index e85a495ada9c..ba945ba78cc7 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -23,6 +23,8 @@ #include "vgic.h" #include "vgic-mmio.h" +static struct kvm_device_ops kvm_arm_vgic_its_ops; + static int vgic_its_save_tables_v0(struct vgic_its *its); static int vgic_its_restore_tables_v0(struct vgic_its *its); static int vgic_its_commit_v0(struct vgic_its *its); @@ -67,7 +69,7 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid, irq->target_vcpu = vcpu; irq->group = 1; - raw_spin_lock_irqsave(&dist->lpi_list_lock, flags); + xa_lock_irqsave(&dist->lpi_xa, flags); /* * There could be a race with another vgic_add_lpi(), so we need to @@ -82,17 +84,14 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid, goto out_unlock; } - ret = xa_err(xa_store(&dist->lpi_xa, intid, irq, 0)); + ret = xa_err(__xa_store(&dist->lpi_xa, intid, irq, 0)); if (ret) { xa_release(&dist->lpi_xa, intid); kfree(irq); - goto out_unlock; } - atomic_inc(&dist->lpi_count); - out_unlock: - raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); + xa_unlock_irqrestore(&dist->lpi_xa, flags); if (ret) return ERR_PTR(ret); @@ -150,14 +149,6 @@ struct its_ite { u32 event_id; }; -struct vgic_translation_cache_entry { - struct list_head entry; - phys_addr_t db; - u32 devid; - u32 eventid; - struct vgic_irq *irq; -}; - /** * struct vgic_its_abi - ITS abi ops and settings * @cte_esz: collection table entry size @@ -252,8 +243,10 @@ static struct its_ite *find_ite(struct vgic_its *its, u32 device_id, #define GIC_LPI_OFFSET 8192 -#define VITS_TYPER_IDBITS 16 -#define VITS_TYPER_DEVBITS 16 +#define VITS_TYPER_IDBITS 16 +#define VITS_MAX_EVENTID (BIT(VITS_TYPER_IDBITS) - 1) +#define VITS_TYPER_DEVBITS 16 +#define VITS_MAX_DEVID (BIT(VITS_TYPER_DEVBITS) - 1) #define VITS_DTE_MAX_DEVID_OFFSET (BIT(14) - 1) #define VITS_ITE_MAX_EVENTID_OFFSET (BIT(16) - 1) @@ -316,53 +309,6 @@ static int update_lpi_config(struct kvm *kvm, struct vgic_irq *irq, return 0; } -#define GIC_LPI_MAX_INTID ((1 << INTERRUPT_ID_BITS_ITS) - 1) - -/* - * Create a snapshot of the current LPIs targeting @vcpu, so that we can - * enumerate those LPIs without holding any lock. - * Returns their number and puts the kmalloc'ed array into intid_ptr. - */ -int vgic_copy_lpi_list(struct kvm *kvm, struct kvm_vcpu *vcpu, u32 **intid_ptr) -{ - struct vgic_dist *dist = &kvm->arch.vgic; - XA_STATE(xas, &dist->lpi_xa, GIC_LPI_OFFSET); - struct vgic_irq *irq; - unsigned long flags; - u32 *intids; - int irq_count, i = 0; - - /* - * There is an obvious race between allocating the array and LPIs - * being mapped/unmapped. If we ended up here as a result of a - * command, we're safe (locks are held, preventing another - * command). If coming from another path (such as enabling LPIs), - * we must be careful not to overrun the array. - */ - irq_count = atomic_read(&dist->lpi_count); - intids = kmalloc_array(irq_count, sizeof(intids[0]), GFP_KERNEL_ACCOUNT); - if (!intids) - return -ENOMEM; - - raw_spin_lock_irqsave(&dist->lpi_list_lock, flags); - rcu_read_lock(); - - xas_for_each(&xas, irq, GIC_LPI_MAX_INTID) { - if (i == irq_count) - break; - /* We don't need to "get" the IRQ, as we hold the list lock. */ - if (vcpu && irq->target_vcpu != vcpu) - continue; - intids[i++] = irq->intid; - } - - rcu_read_unlock(); - raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); - - *intid_ptr = intids; - return i; -} - static int update_affinity(struct vgic_irq *irq, struct kvm_vcpu *vcpu) { int ret = 0; @@ -446,23 +392,18 @@ static u32 max_lpis_propbaser(u64 propbaser) static int its_sync_lpi_pending_table(struct kvm_vcpu *vcpu) { gpa_t pendbase = GICR_PENDBASER_ADDRESS(vcpu->arch.vgic_cpu.pendbaser); + struct vgic_dist *dist = &vcpu->kvm->arch.vgic; + unsigned long intid, flags; struct vgic_irq *irq; int last_byte_offset = -1; int ret = 0; - u32 *intids; - int nr_irqs, i; - unsigned long flags; u8 pendmask; - nr_irqs = vgic_copy_lpi_list(vcpu->kvm, vcpu, &intids); - if (nr_irqs < 0) - return nr_irqs; - - for (i = 0; i < nr_irqs; i++) { + xa_for_each(&dist->lpi_xa, intid, irq) { int byte_offset, bit_nr; - byte_offset = intids[i] / BITS_PER_BYTE; - bit_nr = intids[i] % BITS_PER_BYTE; + byte_offset = intid / BITS_PER_BYTE; + bit_nr = intid % BITS_PER_BYTE; /* * For contiguously allocated LPIs chances are we just read @@ -472,25 +413,23 @@ static int its_sync_lpi_pending_table(struct kvm_vcpu *vcpu) ret = kvm_read_guest_lock(vcpu->kvm, pendbase + byte_offset, &pendmask, 1); - if (ret) { - kfree(intids); + if (ret) return ret; - } + last_byte_offset = byte_offset; } - irq = vgic_get_irq(vcpu->kvm, NULL, intids[i]); + irq = vgic_get_irq(vcpu->kvm, NULL, intid); if (!irq) continue; raw_spin_lock_irqsave(&irq->irq_lock, flags); - irq->pending_latch = pendmask & (1U << bit_nr); + if (irq->target_vcpu == vcpu) + irq->pending_latch = pendmask & (1U << bit_nr); vgic_queue_irq_unlock(vcpu->kvm, irq, flags); vgic_put_irq(vcpu->kvm, irq); } - kfree(intids); - return ret; } @@ -566,51 +505,52 @@ static unsigned long vgic_mmio_read_its_idregs(struct kvm *kvm, return 0; } -static struct vgic_irq *__vgic_its_check_cache(struct vgic_dist *dist, - phys_addr_t db, - u32 devid, u32 eventid) +static struct vgic_its *__vgic_doorbell_to_its(struct kvm *kvm, gpa_t db) { - struct vgic_translation_cache_entry *cte; + struct kvm_io_device *kvm_io_dev; + struct vgic_io_device *iodev; - list_for_each_entry(cte, &dist->lpi_translation_cache, entry) { - /* - * If we hit a NULL entry, there is nothing after this - * point. - */ - if (!cte->irq) - break; + kvm_io_dev = kvm_io_bus_get_dev(kvm, KVM_MMIO_BUS, db); + if (!kvm_io_dev) + return ERR_PTR(-EINVAL); - if (cte->db != db || cte->devid != devid || - cte->eventid != eventid) - continue; + if (kvm_io_dev->ops != &kvm_io_gic_ops) + return ERR_PTR(-EINVAL); - /* - * Move this entry to the head, as it is the most - * recently used. - */ - if (!list_is_first(&cte->entry, &dist->lpi_translation_cache)) - list_move(&cte->entry, &dist->lpi_translation_cache); + iodev = container_of(kvm_io_dev, struct vgic_io_device, dev); + if (iodev->iodev_type != IODEV_ITS) + return ERR_PTR(-EINVAL); - return cte->irq; - } + return iodev->its; +} + +static unsigned long vgic_its_cache_key(u32 devid, u32 eventid) +{ + return (((unsigned long)devid) << VITS_TYPER_IDBITS) | eventid; - return NULL; } static struct vgic_irq *vgic_its_check_cache(struct kvm *kvm, phys_addr_t db, u32 devid, u32 eventid) { - struct vgic_dist *dist = &kvm->arch.vgic; + unsigned long cache_key = vgic_its_cache_key(devid, eventid); + struct vgic_its *its; struct vgic_irq *irq; - unsigned long flags; - raw_spin_lock_irqsave(&dist->lpi_list_lock, flags); + if (devid > VITS_MAX_DEVID || eventid > VITS_MAX_EVENTID) + return NULL; - irq = __vgic_its_check_cache(dist, db, devid, eventid); + its = __vgic_doorbell_to_its(kvm, db); + if (IS_ERR(its)) + return NULL; + + rcu_read_lock(); + + irq = xa_load(&its->translation_cache, cache_key); if (!vgic_try_get_irq_kref(irq)) irq = NULL; - raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); + rcu_read_unlock(); return irq; } @@ -619,41 +559,13 @@ static void vgic_its_cache_translation(struct kvm *kvm, struct vgic_its *its, u32 devid, u32 eventid, struct vgic_irq *irq) { - struct vgic_dist *dist = &kvm->arch.vgic; - struct vgic_translation_cache_entry *cte; - unsigned long flags; - phys_addr_t db; + unsigned long cache_key = vgic_its_cache_key(devid, eventid); + struct vgic_irq *old; /* Do not cache a directly injected interrupt */ if (irq->hw) return; - raw_spin_lock_irqsave(&dist->lpi_list_lock, flags); - - if (unlikely(list_empty(&dist->lpi_translation_cache))) - goto out; - - /* - * We could have raced with another CPU caching the same - * translation behind our back, so let's check it is not in - * already - */ - db = its->vgic_its_base + GITS_TRANSLATER; - if (__vgic_its_check_cache(dist, db, devid, eventid)) - goto out; - - /* Always reuse the last entry (LRU policy) */ - cte = list_last_entry(&dist->lpi_translation_cache, - typeof(*cte), entry); - - /* - * Caching the translation implies having an extra reference - * to the interrupt, so drop the potential reference on what - * was in the cache, and increment it on the new interrupt. - */ - if (cte->irq) - vgic_put_irq(kvm, cte->irq); - /* * The irq refcount is guaranteed to be nonzero while holding the * its_lock, as the ITE (and the reference it holds) cannot be freed. @@ -661,39 +573,44 @@ static void vgic_its_cache_translation(struct kvm *kvm, struct vgic_its *its, lockdep_assert_held(&its->its_lock); vgic_get_irq_kref(irq); - cte->db = db; - cte->devid = devid; - cte->eventid = eventid; - cte->irq = irq; + /* + * We could have raced with another CPU caching the same + * translation behind our back, ensure we don't leak a + * reference if that is the case. + */ + old = xa_store(&its->translation_cache, cache_key, irq, GFP_KERNEL_ACCOUNT); + if (old) + vgic_put_irq(kvm, old); +} - /* Move the new translation to the head of the list */ - list_move(&cte->entry, &dist->lpi_translation_cache); +static void vgic_its_invalidate_cache(struct vgic_its *its) +{ + struct kvm *kvm = its->dev->kvm; + struct vgic_irq *irq; + unsigned long idx; -out: - raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); + xa_for_each(&its->translation_cache, idx, irq) { + xa_erase(&its->translation_cache, idx); + vgic_put_irq(kvm, irq); + } } -void vgic_its_invalidate_cache(struct kvm *kvm) +void vgic_its_invalidate_all_caches(struct kvm *kvm) { - struct vgic_dist *dist = &kvm->arch.vgic; - struct vgic_translation_cache_entry *cte; - unsigned long flags; + struct kvm_device *dev; + struct vgic_its *its; - raw_spin_lock_irqsave(&dist->lpi_list_lock, flags); + rcu_read_lock(); - list_for_each_entry(cte, &dist->lpi_translation_cache, entry) { - /* - * If we hit a NULL entry, there is nothing after this - * point. - */ - if (!cte->irq) - break; + list_for_each_entry_rcu(dev, &kvm->devices, vm_node) { + if (dev->ops != &kvm_arm_vgic_its_ops) + continue; - vgic_put_irq(kvm, cte->irq); - cte->irq = NULL; + its = dev->private; + vgic_its_invalidate_cache(its); } - raw_spin_unlock_irqrestore(&dist->lpi_list_lock, flags); + rcu_read_unlock(); } int vgic_its_resolve_lpi(struct kvm *kvm, struct vgic_its *its, @@ -725,8 +642,6 @@ int vgic_its_resolve_lpi(struct kvm *kvm, struct vgic_its *its, struct vgic_its *vgic_msi_to_its(struct kvm *kvm, struct kvm_msi *msi) { u64 address; - struct kvm_io_device *kvm_io_dev; - struct vgic_io_device *iodev; if (!vgic_has_its(kvm)) return ERR_PTR(-ENODEV); @@ -736,18 +651,7 @@ struct vgic_its *vgic_msi_to_its(struct kvm *kvm, struct kvm_msi *msi) address = (u64)msi->address_hi << 32 | msi->address_lo; - kvm_io_dev = kvm_io_bus_get_dev(kvm, KVM_MMIO_BUS, address); - if (!kvm_io_dev) - return ERR_PTR(-EINVAL); - - if (kvm_io_dev->ops != &kvm_io_gic_ops) - return ERR_PTR(-EINVAL); - - iodev = container_of(kvm_io_dev, struct vgic_io_device, dev); - if (iodev->iodev_type != IODEV_ITS) - return ERR_PTR(-EINVAL); - - return iodev->its; + return __vgic_doorbell_to_its(kvm, address); } /* @@ -883,7 +787,7 @@ static int vgic_its_cmd_handle_discard(struct kvm *kvm, struct vgic_its *its, * don't bother here since we clear the ITTE anyway and the * pending state is a property of the ITTE struct. */ - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); its_free_ite(kvm, ite); return 0; @@ -920,7 +824,7 @@ static int vgic_its_cmd_handle_movi(struct kvm *kvm, struct vgic_its *its, ite->collection = collection; vcpu = collection_to_vcpu(kvm, collection); - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); return update_affinity(ite->irq, vcpu); } @@ -955,7 +859,7 @@ static bool vgic_its_check_id(struct vgic_its *its, u64 baser, u32 id, switch (type) { case GITS_BASER_TYPE_DEVICE: - if (id >= BIT_ULL(VITS_TYPER_DEVBITS)) + if (id > VITS_MAX_DEVID) return false; break; case GITS_BASER_TYPE_COLLECTION: @@ -1167,7 +1071,8 @@ static int vgic_its_cmd_handle_mapi(struct kvm *kvm, struct vgic_its *its, } /* Requires the its_lock to be held. */ -static void vgic_its_free_device(struct kvm *kvm, struct its_device *device) +static void vgic_its_free_device(struct kvm *kvm, struct vgic_its *its, + struct its_device *device) { struct its_ite *ite, *temp; @@ -1179,7 +1084,7 @@ static void vgic_its_free_device(struct kvm *kvm, struct its_device *device) list_for_each_entry_safe(ite, temp, &device->itt_head, ite_list) its_free_ite(kvm, ite); - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); list_del(&device->dev_list); kfree(device); @@ -1191,7 +1096,7 @@ static void vgic_its_free_device_list(struct kvm *kvm, struct vgic_its *its) struct its_device *cur, *temp; list_for_each_entry_safe(cur, temp, &its->device_list, dev_list) - vgic_its_free_device(kvm, cur); + vgic_its_free_device(kvm, its, cur); } /* its lock must be held */ @@ -1250,7 +1155,7 @@ static int vgic_its_cmd_handle_mapd(struct kvm *kvm, struct vgic_its *its, * by removing the mapping and re-establishing it. */ if (device) - vgic_its_free_device(kvm, device); + vgic_its_free_device(kvm, its, device); /* * The spec does not say whether unmapping a not-mapped device @@ -1281,7 +1186,7 @@ static int vgic_its_cmd_handle_mapc(struct kvm *kvm, struct vgic_its *its, if (!valid) { vgic_its_free_collection(its, coll_id); - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); } else { struct kvm_vcpu *vcpu; @@ -1372,23 +1277,19 @@ static int vgic_its_cmd_handle_inv(struct kvm *kvm, struct vgic_its *its, int vgic_its_invall(struct kvm_vcpu *vcpu) { struct kvm *kvm = vcpu->kvm; - int irq_count, i = 0; - u32 *intids; - - irq_count = vgic_copy_lpi_list(kvm, vcpu, &intids); - if (irq_count < 0) - return irq_count; + struct vgic_dist *dist = &kvm->arch.vgic; + struct vgic_irq *irq; + unsigned long intid; - for (i = 0; i < irq_count; i++) { - struct vgic_irq *irq = vgic_get_irq(kvm, NULL, intids[i]); + xa_for_each(&dist->lpi_xa, intid, irq) { + irq = vgic_get_irq(kvm, NULL, intid); if (!irq) continue; + update_lpi_config(kvm, irq, vcpu, false); vgic_put_irq(kvm, irq); } - kfree(intids); - if (vcpu->arch.vgic_cpu.vgic_v3.its_vpe.its_vm) its_invall_vpe(&vcpu->arch.vgic_cpu.vgic_v3.its_vpe); @@ -1431,10 +1332,10 @@ static int vgic_its_cmd_handle_invall(struct kvm *kvm, struct vgic_its *its, static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its, u64 *its_cmd) { + struct vgic_dist *dist = &kvm->arch.vgic; struct kvm_vcpu *vcpu1, *vcpu2; struct vgic_irq *irq; - u32 *intids; - int irq_count, i; + unsigned long intid; /* We advertise GITS_TYPER.PTA==0, making the address the vcpu ID */ vcpu1 = kvm_get_vcpu_by_id(kvm, its_cmd_get_target_addr(its_cmd)); @@ -1446,12 +1347,8 @@ static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its, if (vcpu1 == vcpu2) return 0; - irq_count = vgic_copy_lpi_list(kvm, vcpu1, &intids); - if (irq_count < 0) - return irq_count; - - for (i = 0; i < irq_count; i++) { - irq = vgic_get_irq(kvm, NULL, intids[i]); + xa_for_each(&dist->lpi_xa, intid, irq) { + irq = vgic_get_irq(kvm, NULL, intid); if (!irq) continue; @@ -1460,9 +1357,8 @@ static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its, vgic_put_irq(kvm, irq); } - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); - kfree(intids); return 0; } @@ -1813,7 +1709,7 @@ static void vgic_mmio_write_its_ctlr(struct kvm *kvm, struct vgic_its *its, its->enabled = !!(val & GITS_CTLR_ENABLE); if (!its->enabled) - vgic_its_invalidate_cache(kvm); + vgic_its_invalidate_cache(its); /* * Try to process any pending commands. This function bails out early @@ -1914,47 +1810,6 @@ out: return ret; } -/* Default is 16 cached LPIs per vcpu */ -#define LPI_DEFAULT_PCPU_CACHE_SIZE 16 - -void vgic_lpi_translation_cache_init(struct kvm *kvm) -{ - struct vgic_dist *dist = &kvm->arch.vgic; - unsigned int sz; - int i; - - if (!list_empty(&dist->lpi_translation_cache)) - return; - - sz = atomic_read(&kvm->online_vcpus) * LPI_DEFAULT_PCPU_CACHE_SIZE; - - for (i = 0; i < sz; i++) { - struct vgic_translation_cache_entry *cte; - - /* An allocation failure is not fatal */ - cte = kzalloc(sizeof(*cte), GFP_KERNEL_ACCOUNT); - if (WARN_ON(!cte)) - break; - - INIT_LIST_HEAD(&cte->entry); - list_add(&cte->entry, &dist->lpi_translation_cache); - } -} - -void vgic_lpi_translation_cache_destroy(struct kvm *kvm) -{ - struct vgic_dist *dist = &kvm->arch.vgic; - struct vgic_translation_cache_entry *cte, *tmp; - - vgic_its_invalidate_cache(kvm); - - list_for_each_entry_safe(cte, tmp, - &dist->lpi_translation_cache, entry) { - list_del(&cte->entry); - kfree(cte); - } -} - #define INITIAL_BASER_VALUE \ (GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb) | \ GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, SameAsInner) | \ @@ -1987,8 +1842,6 @@ static int vgic_its_create(struct kvm_device *dev, u32 type) kfree(its); return ret; } - - vgic_lpi_translation_cache_init(dev->kvm); } mutex_init(&its->its_lock); @@ -2006,6 +1859,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type) INIT_LIST_HEAD(&its->device_list); INIT_LIST_HEAD(&its->collection_list); + xa_init(&its->translation_cache); dev->kvm->arch.vgic.msis_require_devid = true; dev->kvm->arch.vgic.has_its = true; @@ -2036,6 +1890,8 @@ static void vgic_its_destroy(struct kvm_device *kvm_dev) vgic_its_free_device_list(kvm, its); vgic_its_free_collection_list(kvm, its); + vgic_its_invalidate_cache(its); + xa_destroy(&its->translation_cache); mutex_unlock(&its->its_lock); kfree(its); @@ -2184,6 +2040,7 @@ typedef int (*entry_fn_t)(struct vgic_its *its, u32 id, void *entry, * @start_id: the ID of the first entry in the table * (non zero for 2d level tables) * @fn: function to apply on each entry + * @opaque: pointer to opaque data * * Return: < 0 on error, 0 if last element was identified, 1 otherwise * (the last element may not be found on second level tables) @@ -2223,7 +2080,7 @@ static int scan_its_table(struct vgic_its *its, gpa_t base, int size, u32 esz, return 1; } -/** +/* * vgic_its_save_ite - Save an interrupt translation entry at @gpa */ static int vgic_its_save_ite(struct vgic_its *its, struct its_device *dev, @@ -2243,6 +2100,8 @@ static int vgic_its_save_ite(struct vgic_its *its, struct its_device *dev, /** * vgic_its_restore_ite - restore an interrupt translation entry + * + * @its: its handle * @event_id: id used for indexing * @ptr: pointer to the ITE entry * @opaque: pointer to the its_device @@ -2375,6 +2234,7 @@ static int vgic_its_restore_itt(struct vgic_its *its, struct its_device *dev) * @its: ITS handle * @dev: ITS device * @ptr: GPA + * @dte_esz: device table entry size */ static int vgic_its_save_dte(struct vgic_its *its, struct its_device *dev, gpa_t ptr, int dte_esz) @@ -2438,7 +2298,7 @@ static int vgic_its_restore_dte(struct vgic_its *its, u32 id, ret = vgic_its_restore_itt(its, dev); if (ret) { - vgic_its_free_device(its->dev->kvm, dev); + vgic_its_free_device(its->dev->kvm, its, dev); return ret; } @@ -2457,7 +2317,7 @@ static int vgic_its_device_cmp(void *priv, const struct list_head *a, return 1; } -/** +/* * vgic_its_save_device_tables - Save the device table and all ITT * into guest RAM * @@ -2530,7 +2390,7 @@ static int handle_l1_dte(struct vgic_its *its, u32 id, void *addr, return ret; } -/** +/* * vgic_its_restore_device_tables - Restore the device table and all ITT * from guest RAM to internal data structs */ @@ -2622,7 +2482,7 @@ static int vgic_its_restore_cte(struct vgic_its *its, gpa_t gpa, int esz) return 1; } -/** +/* * vgic_its_save_collection_table - Save the collection table into * guest RAM */ @@ -2662,7 +2522,7 @@ static int vgic_its_save_collection_table(struct vgic_its *its) return ret; } -/** +/* * vgic_its_restore_collection_table - reads the collection table * in guest memory and restores the ITS internal state. Requires the * BASER registers to be restored before. @@ -2700,7 +2560,7 @@ static int vgic_its_restore_collection_table(struct vgic_its *its) return ret; } -/** +/* * vgic_its_save_tables_v0 - Save the ITS tables into guest ARM * according to v0 ABI */ @@ -2715,7 +2575,7 @@ static int vgic_its_save_tables_v0(struct vgic_its *its) return vgic_its_save_collection_table(its); } -/** +/* * vgic_its_restore_tables_v0 - Restore the ITS tables from guest RAM * to internal data structs according to V0 ABI * |